MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous embedded URLs and is identified as a link farm hosted on disposable domains, a common tactic for phishing and malware distribution. The presence of external URIs and compromised CMS upload links further supports this assessment.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARMPDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
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Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARMSmall PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
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External URI info PDF_URIPDF contains an external URL action
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Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTALThe same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
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Embedded URL info EMBEDDED_URLOne or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.URL https://krisoc.ru/uplcv?utm_term=are+walmart+douglas+tires+any+good
- https://amezdigital.com/wp-content/plugins/super-forms/uploads/php/files/bf6aeef807a70245500ec81f99a5661b/49461129541.pdf
- https://www.lightingsolutionsal.com/wp-content/plugins/super-forms/uploads/php/files/2040d685fd19b53587664836877575d8/53034180216.pdf
- https://securitydm.rs/slicice/file/74668801881.pdf
- https://bokseinstituttet.dk/wp-content/plugins/formcraft/file-upload/server/content/files/1609490f32a9d9---wujagoxasula.pdf
- http://jjinline.org/file_upload/file/49289103877.pdf
- https://www.electriclighting.com/wp-content/plugins/super-forms/uploads/php/files/181d1e78e2fe066354b642fcee308351/lokesezazukoti.pdf
- https://shining4u.com/wp-content/plugins/super-forms/uploads/php/files/e0d8f2473b6d6d9982457af6600c5df3/26316591716.pdf
- https://stewsites.com/wp-content/plugins/super-forms/uploads/php/files/8bdb1893f97e5ca90ac9e1eb2ffc8078/61970708909.pdf
- https://loskutova.site/wp-content/plugins/super-forms/uploads/php/files/f5728cd9ae5e053a87332989c42dd94a/88559447779.pdf
- http://msiutilities.biz/documents/vesurubujotil.pdf
- http://www.1atlanticfunding.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608ca78d626e3---54331369884.pdf
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/160847b7844e3c---962436249.pdf
- https://webmodeli.com/wp-content/plugins/formcraft/file-upload/server/content/files/16075b813dde0f---69043026755.pdf
- http://thm-holding.ru/wp-content/plugins/super-forms/uploads/php/files/a12920cc6f33b900267ee9ef131c3e4e/93307092804.pdf
- https://www.fecomerciomg.org.br/wp-content/plugins/formcraft/file-upload/server/content/files/1609f1c2362d08---85393029443.pdf
- https://bbensonmft.com/wp-content/plugins/super-forms/uploads/php/files/3ba4bdb0905e2584ccbb88dce2660727/metadoxagidolujirimum.pdf
- https://chp-travel.ir/data/file/digopopotubak.pdf
- http://baanpowertrain.com/wp-content/plugins/formcraft/file-upload/server/content/files/160796b1c17632---refafobegez.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- http://www.daltonmaag.com/
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://scripts.sil.org/OFL
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000e76e.bin7ac89f5cf9e77ad25dafcd2a4666fd6ce4517b51c05885b0257b4914b2152359 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE76E | 5212 bytes |
font_01_sfnt_off0000f920.bin863ba50e901df30c960453761a0150fc0386f39a947139c29edb8fb7610d8978 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF920 | 10976 bytes |
font_02_sfnt_off00011e9a.bina542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11E9A | 4324 bytes |
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